CN108280383A - Multiple antennas RFID circuit - Google Patents
Multiple antennas RFID circuit Download PDFInfo
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- CN108280383A CN108280383A CN201810378575.5A CN201810378575A CN108280383A CN 108280383 A CN108280383 A CN 108280383A CN 201810378575 A CN201810378575 A CN 201810378575A CN 108280383 A CN108280383 A CN 108280383A
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- electronic switch
- module
- multiple antennas
- output end
- rfid
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- 239000011159 matrix material Substances 0.000 claims description 19
- 230000005611 electricity Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10356—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers using a plurality of antennas, e.g. configurations including means to resolve interference between the plurality of antennas
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention relates to a kind of multiple antennas RFID circuits, control module is connect by controlling the input terminal of the first electronic switch and the second electronic switch with each output end, realize that the connection different between the output end of the second electronic switch of the output end of the first electronic switch is combined, the Anneta module quantity according to connecting path carry under various combination is different.Based on this, the carry mutiple antennas module in same RFID read-write module is realized, and the quantity of control carry Anneta module can be selected by access, to reduce the volume and cost of multiple antennas RFID circuit.
Description
Technical field
The present invention relates to radio RF recognition technology fields, more particularly to a kind of multiple antennas RFID circuit.
Background technology
Radio RF recognition technology is a kind of wireless communication technique, and specific objective can be identified by radio signals and is read
Related data is write, without establishing machinery or optical contact between identifying system and specific objective.The recognizable height of RFID technique
Fast moving object and the data that can identify multiple labels simultaneously, and RFID antenna is the transmitting for being used for transmission label data, receives
Device.
In traditional RFID (Radio Frequency Identification) circuit, a RFID chip is general only
Connect one to two antenna.In the application scenario including mutiple antennas, needs to use multiple RFID chips, cause multiple antennas
RFID circuit volume is larger and cost is higher.
Invention content
Based on this, it is necessary to which and cost higher defect larger for multiple antennas RFID circuit volume provides more days a kind of
Line RFID circuit.
The technical solution that the embodiment of the present invention is provided is as follows：
A kind of multiple antennas RFID circuit, including the first electronic switch, the second electronic switch, control module,
RFID read-write module and mutiple antennas module；
First electronic switch and the second electronic switch include input terminal and multiple output ends；Wherein, first
The Card read/write end of the input terminal connection RFID read-write module of electronic switch, the input termination of the second electronic switch
Ground；
Any output end of first electronic switch can form access with any output end of the second electronic switch,
And one or more Anneta modules are connected on access；
Control module connects the control terminal of the first electronic switch, and the input for controlling the first electronic switch
End is connect with each output end；Control module is also connected with the control terminal of the second electronic switch, and is cut for controlling the second electronics
The input terminal for changing switch is connect with each output end.
In one embodiment, Anneta module is arranged with multistage matrix form；Wherein, multistage order of matrix number and the first electronics
The fan-out of switching switch or the second electronic switch is equal；
Each Anneta module is separately connected adjacent antenna module with a line and same row with it；
The first row, last column, first row or last Anneta module arranged and the switching of the first electronics of multistage matrix are opened
The output end of pass connects one to one；
The first row, last column, first row or last Anneta module arranged and the switching of the second electronics of multistage matrix are opened
The output end of pass connects one to one；Wherein, the matrix where the Anneta module of the output end of the second electronic switch of connection
Ranks are different from the matrix ranks where the Anneta module of the output end of the first electronic switch of connection.
In one embodiment, for connecting positive supply, another power end is used for a power end of the first electronic switch
Connect negative supply；
One power end of the second electronic switch is for connecting positive supply, and another power end is for connecting negative supply.
In one embodiment, control module is also connected with the control terminal of RFID read-write module, for controlling RFID read-write module
Corresponding RFID information is read and write by the Anneta module being connected.
In one embodiment, the first electronic switch and the first electronic switch are one analog switch of multiselect.
In one embodiment, the first electronic switch and the first electronic switch are that HEF4051BT eight selects a mould
Quasi- switch.
In one embodiment, control module MCU.
In one embodiment, RFID read-write module is RFID card reading circuits.
In one embodiment, Anneta module is antenna plate.
Multiple antennas RFID circuit provided by the present invention, control module is by controlling the first electronic switch and the second electricity
The input terminal of son switching switch is connect with each output end, realizes that the output end of the first electronic switch is opened with the switching of the second electronics
Different connections combination between the output end of pass, the Anneta module quantity according to connecting path carry under various combination are different.It is based on
This, realizes the carry mutiple antennas module in same RFID read-write module, and control carry Anneta module can be selected by access
Quantity, to reduce the volume and cost of multiple antennas RFID circuit.
The embodiment of the present invention also provides a kind of multiple antennas RFID reader, including reader shell, and setting is being read
Multiple antennas RFID circuit in device shell.
The multiple antennas RFID reader that the embodiment of the present invention is provided meets RFID circuit by multiple antennas RFID circuit
Application in multiple antennas application scenario, while effectively reducing the volume and cost of multiple antennas RFID reader.
Description of the drawings
Fig. 1 is multiple antennas RFID circuit module connection figure；
Fig. 2 is the multiple antennas RFID circuit module connection figure of optional embodiment；
Fig. 3 is the power supply connection diagram of electronic switch.
Specific implementation mode
Purpose, technical solution and technique effect for a better understanding of the present invention, below in conjunction with drawings and examples
Further explaining illustration is carried out to the present invention.It states simultaneously, embodiments described below is only used for explaining the present invention, not
For limiting the present invention.
Fig. 1 is multiple antennas RFID circuit module connection figure, as shown in Figure 1, including the first electronic switch 101, second
Electronic switch 102, control module 103, RFID read-write module 104 and Anneta module 105；
First electronic switch 101 and the second electronic switch 102 include input terminal TX and multiple output ends
(TX1~TXn)；Wherein, the Card read/write end of the input terminal TX connections RFID read-write module 104 of the first electronic switch 101
Out, the input terminal TX ground connection of the second electronic switch 102；
Any output end (TX1~TXn) of first electronic switch 101 can be with times of the second electronic switch 102
One output end (TX1~TXn) forms access, and one or more Anneta modules are connected on access；
Wherein, the output of the output end (TX1~TXn) and the second electronic switch 102 of the first electronic switch 101
Different connections is combined between end (TX1~TXn), and the Anneta module quantity in different connecting paths is different.As shown in Figure 1, first
The output end of electronic switch 101 has n, and the output end of the second electronic switch 102 also has n, the switching of the first electronics
The output end (TX1~TXn) of switch 101 may make up n with the output end (TX1~TXn) of the second electronic switch 1022Kind connects
Combination is connect, i.e., at most may include n2Kind Anneta module quantity.The quantity of Anneta module 105 on any connecting path can be set in advance
It is fixed.
Control module 103 connects the control terminal A of the first electronic switch 101, and is opened for controlling the switching of the first electronics
The input terminal TX of pass 101 is connect with each output end (TX1~TXn)；Control module 103 is also connected with the second electronic switch 102
Control terminal B, and the input terminal TX for controlling the second electronic switch 103 is connect with each output end (TX1~TXn).
Control module 103 can in order to control circuit or control chip.Wherein, the first electronic switch 101 or the second electronics
Switching 102 input terminal TX of switch and the connection of output end (TX1~TXn) can be controlled by logic level, and logic level is input to
The control terminal A or B of first electronic switch 101 or the second electronic switch 102, the first electronic switch 101 or the
Two electronic switch 102 select a corresponding output end (TX1~TXn) and input terminal TX according to the logic level at a moment
Connection.Based on this, control circuit is the circuit of exportable logic level, and control chip is to be previously written logic level control logic
Or the chip that logic is controllable.In an optional embodiment, control module 103 is MCU.Electronics switching is previously written in MCU
Control logic, the first electronic switch of control 101 or the second electricity are inquired in the control logic of switch, such as dynamic polling or saltus step
The connection of son switching switch 102 input terminal TX and output end (TX1~TXn).
The multiple antennas RFID circuit that the present embodiment is provided, control module 103 is by controlling the first electronic switch 101
It is connect with each output end (TX1~TXn) with the input terminal TX of the second electronic switch 102, realizes the first electronic switch
The connection different between the output end (TX1~TXn) of the second electronic switch 102 of 101 output end (TX1~TXn) is combined,
105 quantity of Anneta module according to connecting path carry under various combination is different.Based on this, realize in same RFID read-write module
Carry mutiple antennas module 105 on 104, and the quantity of control carry Anneta module 105 can be selected by access, to reduce more days
The volume and cost of line RFID circuit.
Fig. 2 be an optional embodiment multiple antennas RFID circuit module connection figure, as shown in Fig. 2, Anneta module 105 with
Multistage matrix form arrangement；Wherein, multistage order of matrix number and the first electronic switch 101 or the second electronic switch
102 fan-out is equal；
Each Anneta module 105 is separately connected adjacent antenna module 105 with a line and same row with it；
Anneta module 105 and the switching of the first electronics of the first row, last column, first row or last row of multistage matrix
The output end (TX1~TXn) of switch 101 connects one to one；
Anneta module 105 and the switching of the second electronics of the first row, last column, first row or last row of multistage matrix
The output end (TX1~TXn) of switch 102 connects one to one；Wherein, the output end of the second electronic switch 102 is connected
Matrix ranks where the Anneta module 105 of (TX1~TXn) with connect the first electronic switch 101 output end (TX1~
TXn the matrix ranks where Anneta module 105) are different.
The multiple antennas RFID circuit module of this optional embodiment, passes through the Anneta module arranged with multistage matrix form
105, it realizes in 104 carry 1 of same RFID read-write module to n2- 1 Anneta module is completed in same RFID read-write module 104
105 quantity of carry Anneta module it is linear selected.
Fig. 3 is the power supply connection diagram of electronic switch, as shown in figure 3, the first electronic switch 101 or the second
One power end V+ connection positive supplies of electronic switch 102, another power end V- connections negative supply.
Usually, the power end of the first electronic switch 101 or the second electronic switch 102 is to connect positive supply respectively
The ground and.In the present embodiment, by a power end V+ connections of the first electronic switch 101 or the second electronic switch 102
Positive supply, another power end V- connections negative supply, so that the first electronic switch 101 or the second electronic switch 102 are not
RFID signal in circuit can be had an impact, it is ensured that RFID signal free of losses is transmitted, solve multiple antennas RFID circuit read away from
From close problem.
Wherein, the first electronic switch 101 or the second electronic switch 102 can be one analog switch of multiselect, such as 16
1 analog switch, 8 are selected to select 1 analog switch or 4 select 1 analog switch etc..Each output end of one analog switch of multiselect is correspondingly connected with one
Anneta module 105, RFID read-write module 103 can realize the company with Anneta module 105 by the input terminal of one analog switch of multiselect
It connects.In an optional embodiment, it is the first electronic switch 101 or the second to select HEF4051BT eight to select an analog switch
Electronic switch 102 realizes the carry 1 to 8 in same RFID read-write module 1042- 1 Anneta module 105.
As shown in figure 3, in an optional embodiment, control module 103 is also connected with the control terminal of RFID read-write module 104
C reads and writes corresponding RFID information for controlling RFID read-write module 104 by the Anneta module 105 being connected.Based on this, have
Effect reduces the volume of multiple antennas RFID circuit.Wherein, RFID card reading circuits or RFID read-write core can be selected in RFID read-write module 104
Piece.Meanwhile Anneta module 105 can be naked antenna or access the antenna plate of antenna.
The embodiment of the present invention also provides a kind of multiple antennas RFID reader, including reader shell, and setting is being read
In device shell as above-described embodiment multiple antennas RFID circuit.By multiple antennas RFID circuit, meet RFID circuit at more days
The application of line application scenario, while effectively reducing the volume and cost of multiple antennas RFID reader.
Each technical characteristic of above example can be combined arbitrarily, to keep description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield is all considered to be the range of this specification record.
Only several embodiments of the present invention are expressed for above example, the description thereof is more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, various modifications and improvements can be made, these are all within the scope of protection of the present invention.
Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of multiple antennas RFID circuit, which is characterized in that including the first electronic switch, the second electronic switch, control
Molding block, RFID read-write module and mutiple antennas module；
First electronic switch includes input terminal and multiple output ends with second electronic switch；Wherein,
The input terminal of first electronic switch connects the Card read/write end of the RFID read-write module, the second electronics switching
The input end grounding of switch；
Any output end of first electronic switch can be formed with any output end of second electronic switch
Access, and one or more Anneta modules are connected on the access；
The control module connects the control terminal of first electronic switch, and is opened for controlling the first electronics switching
The input terminal of pass is connect with each output end；The control module is also connected with the control terminal of second electronic switch, is used in combination
It is connect with each output end in the input terminal for controlling second electronic switch.
2. multiple antennas RFID circuit according to claim 1, which is characterized in that the Anneta module is with multistage matrix form
Arrangement；Wherein, the fan-out phase of the multistage order of matrix number and the first electronic switch or the second electronic switch
Deng；
Each Anneta module is separately connected adjacent antenna module with a line and same row with it；
The first row, last column, first row or last Anneta module arranged of the multistage matrix are cut with first electronics
The output end for changing switch connects one to one；
The first row, last column, first row or last Anneta module arranged of the multistage matrix are cut with second electronics
The output end for changing switch connects one to one；Wherein, the Anneta module institute of the output end of second electronic switch is connected
Matrix ranks it is different from the matrix ranks where the Anneta module for the output end for connecting first electronic switch.
3. multiple antennas RFID circuit according to claim 1, which is characterized in that an electricity of first electronic switch
Source is for connecting the positive supply, and another power end is for connecting the negative supply；
For one power end of second electronic switch for connecting the positive supply, another power end is described negative for connecting
Power supply.
4. multiple antennas RFID circuit according to claim 1, which is characterized in that the control module is also connected with the RFID
The control terminal of module for reading and writing reads and writes corresponding RFID letters for controlling the RFID read-write module by the Anneta module being connected
Breath.
5. multiple antennas RFID circuit according to any one of claims 1 to 4, which is characterized in that first electronics is cut
It is one analog switch of multiselect to change switch and first electronic switch.
6. multiple antennas RFID circuit according to claim 5, which is characterized in that first electronic switch and described
First electronic switch is that HEF4051BT eight selects an analog switch.
7. multiple antennas RFID circuit according to any one of claims 1 to 4, which is characterized in that the control module is
MCU。
8. multiple antennas RFID circuit according to any one of claims 1 to 4, which is characterized in that the RFID read-write mould
Block is RFID card reading circuits.
9. multiple antennas RFID circuit according to any one of claims 1 to 4, which is characterized in that the Anneta module is
Antenna plate.
10. a kind of multiple antennas RFID reader, which is characterized in that including reader shell, and be arranged outside the reader
The multiple antennas RFID circuit as described in claim 1 to 9 any one in shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378575.5A CN108280383A (en) | 2018-04-25 | 2018-04-25 | Multiple antennas RFID circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378575.5A CN108280383A (en) | 2018-04-25 | 2018-04-25 | Multiple antennas RFID circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108280383A true CN108280383A (en) | 2018-07-13 |
Family
ID=62811837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810378575.5A Pending CN108280383A (en) | 2018-04-25 | 2018-04-25 | Multiple antennas RFID circuit |
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| Country | Link |
|---|---|
| CN (1) | CN108280383A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362785A (en) * | 2021-12-29 | 2022-04-15 | 贸联电子(昆山)有限公司 | High-frequency signal switching device and tester and test system with same |
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| JP2009059030A (en) * | 2007-08-30 | 2009-03-19 | Nec Tokin Corp | Reader/writer and ic tag system therewith |
| CN103632116A (en) * | 2013-11-22 | 2014-03-12 | 威海北洋电气集团股份有限公司 | Multi-path radio frequency antenna shifter and RFID (radio frequency identification) multi-antenna system |
| CN204229433U (en) * | 2014-11-20 | 2015-03-25 | 深圳市捷通科技有限公司 | A kind of hyperchannel rfid interrogator and RFID recognition system |
| CN208873147U (en) * | 2018-04-25 | 2019-05-17 | 广州周立功单片机科技有限公司 | Multiple antennas RFID circuit and multiple antennas RFID reader |
-
2018
- 2018-04-25 CN CN201810378575.5A patent/CN108280383A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009059030A (en) * | 2007-08-30 | 2009-03-19 | Nec Tokin Corp | Reader/writer and ic tag system therewith |
| CN103632116A (en) * | 2013-11-22 | 2014-03-12 | 威海北洋电气集团股份有限公司 | Multi-path radio frequency antenna shifter and RFID (radio frequency identification) multi-antenna system |
| CN204229433U (en) * | 2014-11-20 | 2015-03-25 | 深圳市捷通科技有限公司 | A kind of hyperchannel rfid interrogator and RFID recognition system |
| CN208873147U (en) * | 2018-04-25 | 2019-05-17 | 广州周立功单片机科技有限公司 | Multiple antennas RFID circuit and multiple antennas RFID reader |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362785A (en) * | 2021-12-29 | 2022-04-15 | 贸联电子(昆山)有限公司 | High-frequency signal switching device and tester and test system with same |
| CN114362785B (en) * | 2021-12-29 | 2023-11-17 | 贸联电子(昆山)有限公司 | High-frequency signal switching device and tester and test system with same |
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Address after: 510660 Room 1603-1607, 117 Longyi Road, Tianhe District, Guangzhou City, Guangdong Province Applicant after: Guangzhou Ligong Science and Technology Co., Ltd. Address before: 510660 Room 1603-1607, 117 Longyi Road, Tianhe District, Guangzhou City, Guangdong Province Applicant before: Guangzhou Zhouligong SCM Technology Co.,Ltd. |